I looooove the Battle Buddy Basic, even if it's name is stupid.
As do I. Great commlink, and very reasonable for an ex-military or merc character to have.
And for a serious hacker. "Surplus MilSpec", plus it has the stats and features to suit.
And, as a note for "Serious Hackers", the best bet is the Renraku Suterusu, rather than the Transys Cybernaut, for getting optimum performance once you have money to spend on upgrading from the Battle Buddy Basic.
The Cybernaut costs 32,250¥ more than the Suterusu, and you'll still have to pay to upgrade either one to reach Response 10, which is going to cost 192,000¥ regardless of which one you upgrade from.
The only difference is that the Suterusu is going to cap out at Signal 9 (12,500¥), vs Signal 10 (17,250¥) for the Cybernaut. That means, in essence, you pay an extra 37,000¥ for one extra point of Signal. With that hefty chunk of change, you could afford to buy ECCM 6 with the Ergonomic option and still have over 30,000¥ left over to put towards Exploit 10.